If I'm going to be editing a lot of video in FCP 7 (not X) as a prospective Film student (it's what my college teaches on), just how much, if any, difference am I going to experience between having 8 GB RAM or 16 GB RAM? Also, since FCP7 is not Retina-optimized, would a Retina display not be particularly useful to me, or even detrimental (though I'd still be able to play HD videos in a higher resolution)? I'm thinking of getting a new MBP and am leaning towards the non-Retina model. I understand that the rMBP has an improved thermal system though... how much of a difference would this make for editing in FCP7? Thanks!